EP0744421B1 - Pulverlack für matte Beschichtungen - Google Patents
Pulverlack für matte Beschichtungen Download PDFInfo
- Publication number
- EP0744421B1 EP0744421B1 EP96107621A EP96107621A EP0744421B1 EP 0744421 B1 EP0744421 B1 EP 0744421B1 EP 96107621 A EP96107621 A EP 96107621A EP 96107621 A EP96107621 A EP 96107621A EP 0744421 B1 EP0744421 B1 EP 0744421B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groups
- component
- carboxyl
- powder coating
- molecular weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 94
- 239000000843 powder Substances 0.000 title claims abstract description 80
- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- 102000002322 Egg Proteins Human genes 0.000 title 1
- 108010000912 Egg Proteins Proteins 0.000 title 1
- 210000003278 egg shell Anatomy 0.000 title 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 57
- 150000008064 anhydrides Chemical class 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 17
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 8
- -1 aliphatic dicarboxylic acids Chemical class 0.000 claims abstract description 7
- PCHXZXKMYCGVFA-UHFFFAOYSA-N 1,3-diazetidine-2,4-dione Chemical group O=C1NC(=O)N1 PCHXZXKMYCGVFA-UHFFFAOYSA-N 0.000 claims description 41
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 32
- 150000001244 carboxylic acid anhydrides Chemical group 0.000 claims description 27
- 150000001875 compounds Chemical class 0.000 claims description 25
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 19
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 16
- 229920000728 polyester Polymers 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 11
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 7
- 125000005442 diisocyanate group Chemical group 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 125000005587 carbonate group Chemical group 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- UDSFAEKRVUSQDD-UHFFFAOYSA-N Dimethyl adipate Chemical compound COC(=O)CCCCC(=O)OC UDSFAEKRVUSQDD-UHFFFAOYSA-N 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 150000001733 carboxylic acid esters Chemical class 0.000 claims description 3
- 150000001990 dicarboxylic acid derivatives Polymers 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- XTDYIOOONNVFMA-UHFFFAOYSA-N dimethyl pentanedioate Chemical compound COC(=O)CCCC(=O)OC XTDYIOOONNVFMA-UHFFFAOYSA-N 0.000 claims description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- 125000003262 carboxylic acid ester group Chemical group [H]C([H])([*:2])OC(=O)C([H])([H])[*:1] 0.000 claims 1
- 229940043237 diethanolamine Drugs 0.000 claims 1
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000002076 thermal analysis method Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract description 3
- 150000007513 acids Chemical class 0.000 abstract description 2
- 239000012948 isocyanate Substances 0.000 abstract description 2
- 239000004971 Cross linker Substances 0.000 description 15
- 229920002732 Polyanhydride Polymers 0.000 description 14
- 238000002844 melting Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 230000008018 melting Effects 0.000 description 13
- 239000005056 polyisocyanate Substances 0.000 description 13
- 229920001228 polyisocyanate Polymers 0.000 description 13
- 239000004814 polyurethane Substances 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 229920002635 polyurethane Polymers 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 8
- 239000003973 paint Substances 0.000 description 8
- 229920005906 polyester polyol Polymers 0.000 description 8
- OUPZKGBUJRBPGC-UHFFFAOYSA-N 1,3,5-tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound O=C1N(CC2OC2)C(=O)N(CC2OC2)C(=O)N1CC1CO1 OUPZKGBUJRBPGC-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 125000004185 ester group Chemical group 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- JQZRVMZHTADUSY-UHFFFAOYSA-L di(octanoyloxy)tin Chemical compound [Sn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O JQZRVMZHTADUSY-UHFFFAOYSA-L 0.000 description 5
- 238000004455 differential thermal analysis Methods 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000004848 polyfunctional curative Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 150000002009 diols Chemical class 0.000 description 4
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 4
- 239000004922 lacquer Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920001485 poly(butyl acrylate) polymer Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- NMRPBPVERJPACX-UHFFFAOYSA-N (3S)-octan-3-ol Natural products CCCCCC(O)CC NMRPBPVERJPACX-UHFFFAOYSA-N 0.000 description 2
- YJCJVMMDTBEITC-UHFFFAOYSA-N 10-hydroxycapric acid Chemical compound OCCCCCCCCCC(O)=O YJCJVMMDTBEITC-UHFFFAOYSA-N 0.000 description 2
- ZDHCZVWCTKTBRY-UHFFFAOYSA-N 12-hydroxylauric acid Chemical compound OCCCCCCCCCCCC(O)=O ZDHCZVWCTKTBRY-UHFFFAOYSA-N 0.000 description 2
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 2
- UGAGPNKCDRTDHP-UHFFFAOYSA-N 16-hydroxyhexadecanoic acid Chemical compound OCCCCCCCCCCCCCCCC(O)=O UGAGPNKCDRTDHP-UHFFFAOYSA-N 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 2
- WOFPPJOZXUTRAU-UHFFFAOYSA-N 2-Ethyl-1-hexanol Natural products CCCCC(O)CCC WOFPPJOZXUTRAU-UHFFFAOYSA-N 0.000 description 2
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 2
- BWLBGMIXKSTLSX-UHFFFAOYSA-N 2-hydroxyisobutyric acid Chemical compound CC(C)(O)C(O)=O BWLBGMIXKSTLSX-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- QSAWQNUELGIYBC-UHFFFAOYSA-N cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1C(O)=O QSAWQNUELGIYBC-UHFFFAOYSA-N 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000006224 matting agent Substances 0.000 description 2
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 2
- 229940117969 neopentyl glycol Drugs 0.000 description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 2
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 description 1
- ZBBLRPRYYSJUCZ-GRHBHMESSA-L (z)-but-2-enedioate;dibutyltin(2+) Chemical compound [O-]C(=O)\C=C/C([O-])=O.CCCC[Sn+2]CCCC ZBBLRPRYYSJUCZ-GRHBHMESSA-L 0.000 description 1
- ZTXDHEQQZVFGPK-UHFFFAOYSA-N 1,2,4-tris(oxiran-2-ylmethyl)-1,2,4-triazolidine-3,5-dione Chemical compound C1OC1CN1C(=O)N(CC2OC2)C(=O)N1CC1CO1 ZTXDHEQQZVFGPK-UHFFFAOYSA-N 0.000 description 1
- SGUVLZREKBPKCE-UHFFFAOYSA-N 1,5-diazabicyclo[4.3.0]-non-5-ene Chemical compound C1CCN=C2CCCN21 SGUVLZREKBPKCE-UHFFFAOYSA-N 0.000 description 1
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 1
- NYHNVHGFPZAZGA-UHFFFAOYSA-N 2-hydroxyhexanoic acid Chemical compound CCCCC(O)C(O)=O NYHNVHGFPZAZGA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 240000005702 Galium aparine Species 0.000 description 1
- CDMDQYCEEKCBGR-ZKCHVHJHSA-N O=C=N[C@H]1CC[C@H](N=C=O)CC1 Chemical class O=C=N[C@H]1CC[C@H](N=C=O)CC1 CDMDQYCEEKCBGR-ZKCHVHJHSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- CQQXCSFSYHAZOO-UHFFFAOYSA-L [acetyloxy(dioctyl)stannyl] acetate Chemical compound CCCCCCCC[Sn](OC(C)=O)(OC(C)=O)CCCCCCCC CQQXCSFSYHAZOO-UHFFFAOYSA-L 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- RJGHQTVXGKYATR-UHFFFAOYSA-L dibutyl(dichloro)stannane Chemical compound CCCC[Sn](Cl)(Cl)CCCC RJGHQTVXGKYATR-UHFFFAOYSA-L 0.000 description 1
- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 125000001142 dicarboxylic acid group Chemical group 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical class C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- IINXALNHMRMYDC-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O.OC(=O)CCCCCCCCCCC(O)=O IINXALNHMRMYDC-UHFFFAOYSA-N 0.000 description 1
- PYBNTRWJKQJDRE-UHFFFAOYSA-L dodecanoate;tin(2+) Chemical compound [Sn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O PYBNTRWJKQJDRE-UHFFFAOYSA-L 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- VANNPISTIUFMLH-UHFFFAOYSA-N glutaric anhydride Chemical compound O=C1CCCC(=O)O1 VANNPISTIUFMLH-UHFFFAOYSA-N 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- RRBRFYNWESTLOL-UHFFFAOYSA-L hexanoate;tin(2+) Chemical compound [Sn+2].CCCCCC([O-])=O.CCCCCC([O-])=O RRBRFYNWESTLOL-UHFFFAOYSA-L 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3823—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing -N-C=O groups
- C08G18/3825—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing -N-C=O groups containing amide groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2150/00—Compositions for coatings
- C08G2150/20—Compositions for powder coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
Definitions
- the invention relates to a powder coating for the production of matt coatings.
- Powder coatings in addition to high-solids coatings and aqueous coating systems is becoming increasingly important. Powder coatings are used at Application no solvents free and can be used with a very high degree of material utilization to process.
- thermosetting powder coatings based on polyurethane.
- PUR polyurethane
- Polyurethane powder coatings made from polyester polyols in combination with pyromellitic dianhydride and ⁇ -caprolactam-blocked polyisocyanates based on isophorone diisocyanate (IPDI) as a crosslinking component that leads to matt coatings hardening are known (e.g. DE-A 3 238 129).
- Matte powder coatings also result when using special polyester ⁇ -Caprolactam-blocked derivatives of trans-1,4-diisocyanatocyclohexane with a melting range above 140 ° C (e.g. DE-A 37 11 374) or with ⁇ -caprolactam-blocked polyisocyanates containing urea groups (e.g. DE-A 37 39 479) by reacting partially blocked diisocyanates with di- or polyamines can be maintained, networked.
- special polyester ⁇ -Caprolactam-blocked derivatives of trans-1,4-diisocyanatocyclohexane with a melting range above 140 ° C e.g. DE-A 37 11 374
- ⁇ -caprolactam-blocked polyisocyanates containing urea groups e.g. DE-A 37 39 479
- DE-A 33 28 133 describes polyaddition compounds based on an IPDI uretdione with melting points above 130 ° C, in combination with polyester polyols cure to matt films.
- Uretdione powder coating crosslinker with such however, high melting points are difficult to access. Since already Temperatures of about 110 ° C a clear cleavage of the uretdione ring uses, such products can only be used in solution in complex processes subsequent evaporation step. Even when formulating the finished powder coating, in which the two reactants polyol and hardener in are generally mixed by melt extrusion, a temperature of 80 to 110 ° C should not be exceeded in order to premature networking avoid.
- EP-A 553 750 describes powder coatings made from a mixture of two hydroxyl polyesters different OH number and reactivity and releasing-free uretdione powder coating crosslinkers known on the basis of IPDI for the production of matt coatings. However, this process is based on the use of very special polyester polyols limited.
- the powder coatings according to the invention are based on the surprising Observation that polyurethane powder coatings consisting of a Polyester polyol and a uretdione group-containing powder coating crosslinker, which in Burn in generally to high-gloss lacquer films, completely matt Coatings result when you add a combination to the formulation from a carboxyl and / or carboxylic acid anhydride groups Crosslinker component and another, compared to carboxyl and / or Carboxylic anhydride groups having reactive groups Adds crosslinker component and all components by melt extrusion homogenized.
- powder coatings consisting of polyester polyol, uretdione hardener and only one further, for example only one carboxyl and / or Crosslinker component having carboxylic anhydride groups or only one Carboxyl and / or carboxylic anhydride groups reactive crosslinker component deliver high-gloss coatings, and also the combination of one Carboxyl and / or carboxylic anhydride groups and one groups reactive towards carboxyl and / or carboxylic anhydride groups component has a shiny film by itself.
- the powder coatings of the invention harden matt surfaces, especially not because it is known that the addition of a combination of a high molecular weight carboxyl group having powder coating binder and one compared to this binder reactive component, for example a polyepoxide crosslinker, to one Polyurethane powder paint is also a glossy coating material supplies.
- a binder reactive component for example a polyepoxide crosslinker
- the invention also relates to the use of this powder coating for coating heat-resistant substrates.
- component A) contained in the powder coatings according to the invention there are any hydroxyl groups known from powder coating technology containing binders with a hydroxyl number of 25 to 200, preferably from 30 to 150, an average (from the functionality and the hydroxyl content predictable) molecular weight from 400 to 10,000, preferably from 1000 to 5000, which are solid below 40 ° C and liquid above 130 ° C.
- Such binders are, for example, hydroxyl-containing polyesters, polyacrylates or polyurethanes, e.g. in EP-A 45 998 and 254 152, as Powder coating binders are described, but also any mixtures of these Resins.
- Component A) is preferably hydroxyl-containing Polyester, its softening temperature - determined according to differential thermal analysis (DTA) - within the temperature range of 40 to 120 ° C, especially preferably within the temperature range from 45 to 110 ° C.
- DTA differential thermal analysis
- Component B) contained in the powder coating materials of the invention is uretdione groups and optionally free isocyanate groups having polyaddition compounds based on aliphatic and / or cycloaliphatic Diisocyanates, especially those based on 1,6-hexamethylene diisocyanate (HDI), 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (Isophorone diisocyanate, IPDI), 4,4'-diisocyanatodicyclohexylmethane or any Mixtures of these diisocyanates.
- HDI 1,6-hexamethylene diisocyanate
- IPDI 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane
- IPDI 1,6-hexamethylene diisocyanate
- IPDI 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane
- the melting point or melting range of these compounds is generally within the temperature range from 40 to 125 ° C.
- Component B) is contained in such in the powder coating according to the invention Amounts used that on each hydroxyl group of the binder component A) from 0.6 to 1.4, preferably from 0.8 to 1.2, isocyanate groups of the component B) are omitted, the total of in isocyanate groups of component B) dimeric form as uretdione groups and free isocyanate groups Isocyanate groups is understood.
- Suitable dicarboxylic acids C1) are, for example, succinic acid, glutaric acid, Adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, dodecanedioic acid (1,10-decanedicarboxylic acid) or hexahydrophthalic acid.
- Suitable components C2) are, for example, monomeric anhydrides of this type Dicarboxylic acids, such as succinic, glutaric or hexahydrophthalic anhydride, or polymeric anhydrides of such dicarboxylic acids, such as those obtained by intermolecular Obtain condensation of the acids mentioned or their mixtures can be.
- Dicarboxylic acids such as succinic, glutaric or hexahydrophthalic anhydride
- polymeric anhydrides of such dicarboxylic acids such as those obtained by intermolecular Obtain condensation of the acids mentioned or their mixtures can be.
- Specific examples are adipic acid (poly) anhydride, azelaic acid (poly) anhydride, Sebacic acid (poly) anhydride or dodecanedioic acid (poly) anhydride.
- the gel permeation chromatography using polystyrene the molecular weight Mw of these polyanhydrides determined as standard lies in generally at 1000 to 5000
- the polyanhydrides are prepared, for example by reaction of the dicarboxylic acids or the dicarboxylic acid mixtures with acetic anhydride at temperatures from 120 to 200 ° C, preferably 120 up to 170 ° C.
- the acetic acid split off is, for example, by distillation removed under vacuum.
- Suitable components C2) are also modified anhydrides of C1) mentioned dicarboxylic acids, for example polyol-modified polyanhydrides, such as they are accessible according to EP-A 299 420.
- polyol-modified Polyanhydrides is the molar ratio of anhydride groups to carboxyl groups generally 0.04: 1 to 5: 1, preferably 1: 1 to 3: 1.
- Suitable components C) are also polyisocyanate-modified polyanhydrides represents how according to DE-A 4 427 225 by reacting dicarboxylic acids and / or dicarboxylic acid (poly) anhydrides with any organic polyisocyanates and optionally other reactive towards anhydride groups Compounds containing amino and / or hydroxyl groups are available.
- Suitable hydroxycarboxylic acids C3) are in particular those that have a between 40 and 150 ° C have melting point. These include, for example 2-hydroxyisobutyric acid (81 ° C), 2-hydroxyhexanoic acid (61 ° C), 10-hydroxydecanoic acid (76 ° C), 12-hydroxydodecanoic acid (86 ° C), 16-hydroxyhexadecanoic acid (98 ° C) and 12-hydroxyoctadecanoic acid (80 ° C).
- hydroxycarboxylic acids are generally preferred only in combination with unmodified polyanhydrides C2) in amounts of up to 50 % By weight, based on the weight of the polyanhydrides, is used.
- Component C) particularly preferably consists exclusively of at least a saturated aliphatic dicarboxylic acid with 4 to 12 carbon atoms, a monomeric or polymeric anhydride of such dicarboxylic acids or one polyanhydride modified by aliphatic and / or cycloaliphatic polyisocyanates such dicarboxylic acids.
- component D) contained in the powder coatings according to the invention is compared to carboxyl and / or carboxylic acid anhydride groups compounds of average molecular weight containing reactive groups from 200 to 5000, preferably from 200 to 2000, particularly preferably from 250 to 1000, as they are generally used in powder coating technology
- Crosslinker components for powder coating binders containing carboxyl groups for Come into play are generally used in powder coating technology
- Suitable components D) are, for example, the polyepoxides known per se, such as triglycidyl isocyanurate (TGIC) and triglycidylurazole or their Oligomers, glycidyl ethers, such as. B. those based on bisphenol A, but also Glycidyl esters such as e.g. B. that of phthalic acid, tetrahydro- and hexahydrophthalic acid, or any mixtures of such polyepoxides.
- TGIC triglycidyl isocyanurate
- glycidylurazole or their Oligomers glycidyl ethers, such as. B. those based on bisphenol A, but also Glycidyl esters such as e.g. B. that of phthalic acid, tetrahydro- and hexahydrophthalic acid, or any mixtures of such polyepoxides.
- Suitable components D) are, for example, also ⁇ -hydroxyalkylamide groups having compounds, such as those in EP-A 322 834 as crosslinker components are described for carboxyl-containing polyesters.
- the production of such ⁇ -hydroxyalkylamides are generally carried out by base-catalyzed reaction organic polycarboxylic acid esters with ⁇ -hydroxyalkylamines at temperatures up to to 200 ° C with simultaneous distillative removal of the resulting Alcohol.
- component D) TGIC and / or its oligomers or ⁇ -hydroxyalkylamides based on saturated Dicarboxylic acid esters with 4 to 12 carbon atoms in the dicarboxylic acid part Commitment.
- Component D) particularly preferably consists of a ⁇ -hydroxyalkylamide, as it is by reacting diethanolamine with a mixture of 9 Parts by weight of dimethyl adipate and 1 part by weight of dimethyl glutarate will hold.
- Component D) is contained in such in the powder coating according to the invention Amounts used that on each carboxyl equivalent of component C) 0.3 to 1.5, preferably 0.4 to 1.2, compared to carboxyl and / or Carboxylic anhydride groups reactive groups of component D) are omitted, wherein a carboxyl group one and a carboxylic anhydride group two Equivalent to carboxyl equivalents.
- the proportion of components C) and D) in the total amount of components A), B), C) and D) in the powder coatings according to the invention is from 10 to 40 % By weight, preferably from 15 to 35% by weight.
- the powder coating according to the invention can also be made from the conventional Powder coating technology known auxiliaries and additives E) contain. in this connection it is for example catalysts, such as. B. tin (II) hexanoate, Tin (II) octanoate, tin (II) laurate, dibutyltin oxide, dibutyltin chloride, dibutyltin diacetate, Dibutyltin dilaurate, dibutyltin maleate, dioctyltin diacetate, 1,4-diazabicyclo [2.2.2] octane, 1,5-diazabicyclo [4.3.0] non-5-ene or 1,8-diazabicyclo [5.4.0] -undec-7-ene.
- catalysts such as. B. tin (II) hexanoate, Tin (II) octanoate, tin (II) laurate, dibutyl
- Catalysts as additives E) come in, if at all Proportions of 0.1 to 5 wt .-%, preferably 0.1 to 3 wt .-%, based on the Sum of components A), B), C) and D) are used.
- auxiliaries and additives E) are, for example, leveling agents such. B. polybutyl acrylate or those based on polysilicones, light stabilizers, such as B. sterically hindered amines, UV absorbers, such as. B. Benztriazole or Benzophenones and pigments, such as. B. Titanium dioxide.
- Additives E include in particular color stabilizers against the Risk of overburning yellowing.
- Inert substituents include Triethyl phosphite, triphenyl phosphite or preferably trisalkylphenyl phosphite, wherein the alkyl substituents have 6 to 12 carbon atoms.
- Trisnonylphenyl phosphite (technical product, consisting of) is very particularly preferred essentially from an ester of phosphorous acid with the adduct of tripropylene to phenol).
- the components A), B), C), D) and optionally E) intimately mixed and then in the Melt combined into a homogeneous material This can be done in suitable aggregates, for example heatable kneaders, but preferably by melt extrusion take place, the extrusion temperature is generally chosen so that maximum shear forces act on the mixture.
- the extrusion temperature is generally chosen so that maximum shear forces act on the mixture.
- an upper temperature limit of 110 ° C are not exceeded.
- a preferred way of producing a finished powder coating in the sense of the invention for example, in a first step, only two of the individual components, for example only components B) and C), preferably in the melt immediately following the production of one of components B) or C), to mix with each other and only later, in a second Step, to the resulting, consisting of components B) and C) storage-stable homogeneous material to add the other components and to extrude together.
- the proportions of the individual components are independent of the selected process A), B), C) and D), as already listed above, otherwise like this chosen that for each hydroxyl group of component A) from 0.6 to 1.4, preferably from 0.8 to 1.2 isocyanate groups of component B), under Isocyanate groups of component B) the sum of in dimeric form as uretdione groups understood isocyanate groups and free isocyanate groups and for each carboxyl equivalent of component C) from 0.3 to 1.5, preferably from 0.4 to 1.2, compared to carboxyl and / or carboxylic anhydride groups reactive groups of component D) are omitted, one carboxyl group one and one carboxylic anhydride group two carboxyl equivalents may also correspond to components C) and / or D) contained hydroxyl groups remain in the choice of the proportions of Individual components disregarded.
- the NCO / OH equivalent ratio mentioned relates exclusively to the quantitative ratio of component A) to component B).
- the extruded mass is after cooling to room temperature and after a suitable pre-grinding to a powder coating and by sieving the grain proportions above the desired grain size, for example above 0.1 mm, free.
- the powder coating formulations prepared in this way can be prepared using customary powder application methods, such as B. electrostatic powder spraying or sintering the substrates to be coated are applied.
- the hardening of the coatings is carried out by heating to temperatures of 110 to 220 ° C., preferably 130 up to 200 ° C, for example for a period of about 10 to 30 minutes. You get completely matt, hard and elastic coatings that stand out outstanding course and good resistance to solvents and chemicals.
- any heat-resistant substrates e.g. glass, metals, Plastics
- any heat-resistant substrates e.g. glass, metals, Plastics
- Polyisocyanate-modified polyanhydride C2-a) (analogous to DE-A 4 427 225)
- solid polyisocyanate-modified polyanhydride C2-a) is added in portions in an amount of 40% after reaching a free NCO content of 0.8% at a temperature of 105 ° C. based on the total amount of the two components Ba) and C2-a), in the reaction mixture and, after the polyanhydride has completely melted, is stirred for a further 10 to 15 minutes at this temperature.
- the melt is poured onto a metal sheet to cool and a storage-stable, almost colorless solid resin is obtained with the following characteristics: NCO content 0.5% Uretdione group content (calc.) 7.3% Total NCO content (calc.) 7.8% Equivalent wt. (Carboxyl equivalent). 360 g / val melting point 69 to 72 ° C
- a hydroxyl-containing polyester which consists of 66.6 parts by weight Terephthalic acid, 38.2 parts by weight of neopentyl glycol, 5.3 parts by weight of 1,6-hexanediol and 4.5 parts by weight of 1,1,1-trimethylolpropane and an OH number of 50 and a melting range (determined according to differential thermal analysis) from 55 to 60 ° C, 11.4 parts by weight of the uretdione group-containing Polyaddition compound B-a), corresponding to an equivalent ratio of total NCO to OH of 1: 1, 8.1 parts by weight of the polyisocyanate-modified Polyanhydrids C2-a) and 4.5 parts by weight of the ⁇ -hydroxylamide D-a), corresponding to an equivalent ratio of carboxyl equivalents groups reactive towards carboxyl and / or carboxylic acid anhydride groups of 1: 1, 1.0 parts by weight of a commercially available leveling agent based on polybutyl acrylate (
- the solidified melt is removed using an ACM 2 classifier mill (Hosokawa Mikropul) ground with a 90 ⁇ m sieve and sieved.
- the powder thus obtained is degreased with an ESB cup gun at a high voltage of 70 kV Steel sheet is sprayed and smoothed for 30 min at 170 and 185 ° C, matt white lacquers cured.
- the powders are blended with an ESB cup gun at a high voltage of 70 kV sprayed onto degreased steel sheets and cured for 30 min at 185 ° C.
- the comparative examples show that the addition of only one further, e.g. one Component having carboxyl groups and / or carboxylic anhydride groups (Comparative example 5) or only one compared to carboxyl and / or carboxylic anhydride groups component having reactive groups (comparative example 6) to a polyester polyol and a uretdione group
- Comparative example 5 Component having carboxyl groups and / or carboxylic anhydride groups
- component having reactive groups Comparative example 6
- the powder is applied with an ESB cup gun at a high voltage of 70 kV sprayed onto a degreased steel sheet and cured at 185 ° C for 30 min.
- a glossy lacquer film is obtained, which has the following properties at a layer thickness of approx. 65 ⁇ m: ET 9.0 shine 20 ° 63 60 ° 89 Ac DH 50 judgment 2
- the comparative example shows that the addition of a combination of a high molecular weight Carboxylpolyester and a reactive towards carboxyl groups Crosslinker to a polyester polyol and a uretdione group Polyaddition compound existing polyurethane system not to a matt, but leads to a glossy coating, which moreover only one has moderate resistance to solvents.
- the powder is then sprayed with an ESB cup gun at a high voltage of 70 kV onto a degreased steel sheet and cured at 185 ° C for 30 min.
- the black matt coating obtained has the following paint properties (layer thickness: approx. 70 ⁇ m): ET > 9.0 shine 20 ° 2 60 ° 21 Ac DH 50 judgment 0 - 1
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Polyurethanes Or Polyureas (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Cereal-Derived Products (AREA)
Description
und gegebenenfalls
und/oder
| η (23 °C) | 180 mPas |
| OH-Zahl | 416 mg KOH/g |
| freies Caprolacton | 0,2 % |
| mittleres Molekulargewicht (aus OH-Zahl ber.) | 269 |
| Estergruppengehalt (ber.) | 25,3 % |
| NCO-Gehalt | 0,7 % |
| Uretdiongruppen-Gehalt (ber.) | 12,1 % |
| NCO-Gehalt gesamt (ber.) | 12,8 % |
| Schmelzpunkt | 82 bis 83 °C |
| NCO-Gehalt | 0,3 % |
| Uretdiongruppen-Gehalt (ber.) | 15,0 % |
| NCO-Gehalt gesamt (ber.) | 15,3 % |
| Schmelzpunkt | 105 bis 111 °C |
| NCO-Gehalt | 0,5 % |
| Uretdiongruppen-Gehalt (ber.) | 7,3 % |
| NCO-Gehalt gesamt (ber.) | 7,8 % |
| Äquivalent-Gew. (Carboxyl-Äquivalent). | 360 g/val |
| Schmelzpunkt | 69 bis 72 °C |
| 170 °C | 185 °C | ||
| ET | 9,0 | 9,0 | |
| Glanz | 20° | 2 | 4 |
| 60° | 19 | 23 | |
| Ac | DH | 50 | 50 |
| Urteil | 1 | 0 - 1 |
| Beispiel | 2 | 3 | 4 | 5 (Vergleich) | 6 (Vergleich) |
| Polyester gemäß Beispiel 1 | 38,6 | 33,3 | 41,7 | 44,3 | 46,2 |
| Polyadditionsverbindung B-a) | - | 9,7 | 12,2 | 13,0 | 13,5 |
| B-b) | 9,5 | - | - | - | - |
| Polyanhydrid C2-a) | - | 12,9 | 5,4 | 5,7 | - |
| Dodecandisäure | 8,8 | - | - | - | - |
| β-Hydroxyalkylamid D-a) | 6,1 | 7,1 | - | - | 3,3 |
| TGIC | - | - | 3,7 | - | - |
| Modaflow PIII | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 |
| Zinn(II)octanoat | 1,0 | 1,0 | 1,0 | 1,0 | 1,0 |
| Bayertitan R-KB-4 | 35,0 | 35,0 | 35,0 | 35,0 | 35,0 |
| 2 | 3 | 4 | 5 (Vergleich) | 6 (Vergleich) | ||
| ET | 9,0 | > 9,0 | 9,0 | 0,5 | 0,5 | |
| Glanz | 20° | 3 | 3 | 11 | 35 | 21 |
| 60° | 21 | 20 | 34 | 84 | 64 | |
| Ac | DH | 50 | 50 | 50 | 50 | 50 |
| Urteil | 1 | 0 - 1 | 1 | 2 m | 2 m |
| ET | 9,0 | |
| Glanz | 20° | 63 |
| 60° | 89 | |
| Ac | DH | 50 |
| Urteil | 2 |
| ET | > 9,0 | |
| Glanz | 20° | 2 |
| 60° | 21 | |
| Ac | DH | 50 |
| Urteil | 0 - 1 |
Claims (10)
- Pulverlack, enthaltendmit der Maßgabe, daß die Komponenten A), B), C) und D) in solchen Mengenverhältnissen vorliegen, daß auf jede Hydroxylgruppe der Komponente A) von 0,6 bis 1,4 Isocyanatgruppen der Komponente B) entfallen, wobei unter Isocyanatgruppen der Komponente B) die Summe aus in dimerer Form als Uretdiongruppen vorliegenden Isocyanatgruppen und freien Isocyanatgruppen verstanden wird, auf jedes Carboxyl-Äquivalent der Komponente C) von 0,3 bis 1,5 gegenüber Carboxyl- und/oder Carbonsäureanhydridgruppen reaktive Gruppen der Komponente D) entfallen, wobei eine Carboxylgruppe einem und eine Carbonsäureanhydridgruppe zwei Carboxyl-Äquivalenten entspricht, und der Anteil der Komponenten C) und D) an der Gesamtmenge der Komponenten A), B), C) und D) von 10 bis 40 Gew.-% beträgt.A) eine unterhalb von 40 °C in fester und oberhalb von 130°C in flüssiger Form vorliegende Hydroxylgruppen aufweisende Bindemittelkomponente mit einer OH-Zahl von 25 bis 200 und einem mittleren (aus der Funktionalität und dem Hydroxylgehalt berechenbaren) Molekulargewicht von 400 bis 10000,B) eine unterhalb von 40 °C in fester und oberhalb von 125 °C in flüssiger Form vorliegende Uretdiongruppen und gegebenenfalls freie Isocyanatgruppen aufweisende Polyadditionsverbindung auf Basis aliphatischer und/oder cycloaliphatischer Diisocyanate,C) eine unterhalb von 40 °C in fester und oberhalb von 160 °C in flüssiger Form vorliegende Carboxyl- und/oder Carbonsäureanhydridgruppen aufweisende Komponente, bestehend aus mindestens einer Komponente ausgewählt ausC1) (cyclo)aliphatischen Dicarbonsäuren mit 4 bis 20 Kohlenstoffatomen,C2) monomeren und/oder polymeren gegebenenfalls modifizierten Anhydriden derartiger Dicarbonsäuren undC3) aliphatischen Hydroxycarbonsäuren mit 4 bis 18 Kohlenstoffatomen,D) eine gegenüber Carboxyl- und/oder Carbonsäureanhydridgruppen reaktive Gruppen aufweisende Komponente eines mittleren Molekulargewichtes von 200 bis 5000,
und gegebenenfallsE) aus der Pulverlacktechnologie bekannte Hilfs- und Zusatzstoffe, - Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponente A) aus einem Hydroxylgruppen aufweisenden Polyester mit einer Erweichungstemperatur, die - bestimmt nach der Differential-Thermoanalyse (DTA) - innerhalb des Temperaturbereiches von 40 bis 120 °C liegt, einer OH-Zahl von 25 bis 200 und einem mittleren (aus der Funktionalität und dem Hydroxylgehalt berechenbaren) Molekulargewicht von 1000 bis 5000 besteht.
- Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponente B) aus einer Uretdiongruppen und gegebenenfalls freie Isocyanatgruppen aufweisenden Polyadditionsverbindung auf Basis von Isophorondiisocyanat besteht.
- Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponente B) aus einer Polyadditionsverbindung mita) einem Gehalt an freien Isocyanatgruppen (berechnet als NCO; Molekulargewicht = 42) von 0 bis 2 Gew.-%,b) einem Gehalt an Uretdiongruppen (berechnet als C2N2O2; Molekulargewicht = 84) von 3 bis 16 Gew.-%,c) einem Gehalt an Urethangruppen (berechnet als CHNO2; Molekulargewicht = 59) von 10 bis 22 Gew.-%,d) einem Gehalt an Carbonsäureestergruppen (berechnet als CO2; Molekulargewicht = 44) von 0 bis 20 Gew.-%
und/odere) einem Gehalt an Carbonatgruppen (berechnet als CO3; Molekulargewicht = 60) von 0 bis 25 Gew.-%
besteht, mit der Maßgabe, daß der Gesamtgehalt an Carbonsäureester- und Carbonatgruppen der Polyadditionsverbndung mindestens 1 Gew.-% beträgt. - Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponente C) aus mindestens einem Polyisocyanat-modifizierten Dicarbonsäure(poly)anhydrid auf Basis einer gesättigten aliphatischen, 4 bis 12 Kohlenstoffatome aufweisenden Dicarbonsäure mit einem Gehalt an Carboxylgruppen (berechnet als CO2H; Molekulargewicht = 45) von 0,5 bis 30 Gew.-%, einem Gehalt an Carbonsäureanhydridgruppen (berechnet als C2O3; Molekulargewicht = 72) von 5 bis 35 Gew.-% und einem Gehalt an in Amid- und/oder Harnstoffgruppen gebunden vorliegendem Stickstoff von 0,2 bis 8 Gew.-% besteht.
- Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponente D) aus Trisglycidylisocyanurat und/oder dessen Oligomeren oder einem β-Hydroxyalkylamid auf Basis gesättigter Dicarbonsäuren mit 4 bis 12 Kohlenstoffatomen besteht.
- Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponente D) aus einem β-Hydroxyalkylamid, hergestellt durch Umsetzung von Diethanolamin mit einem Gemisch aus 9 Gew.-Teilen Adipinsäuredimethylester und 1 Gew.-Teil Glutarsäuredimethylester, besteht.
- Pulverlack gemäß Anspruch 1, dadurch gekennzeichnet, daß die Komponenten A), B), C) und D) in solchen Mengenverhältnissen vorliegen, daß auf jede Hydroxylgruppe der Komponente A) von 0,8 bis 1,2 Isocyanatgruppen der Komponente B) entfallen, wobei unter Isocyanatgruppen der Komponente B) die Summe aus in dimerer Form als Uretdiongruppen vorliegenden Isocyanatgruppen und freien Isocyanatgruppen verstanden wird, auf jedes Carboxyl-Äquivalent der Komponente C) von 0,4 bis 1,2 gegenüber Carboxyl- und/oder Carbonsäureanhydridgruppen reaktive Gruppen der Komponente D) entfallen und der Anteil der Komponenten C) und D) an der Gesamtmenge der Komponenten A), B), C) und D) von 15 bis 35 Gew.-% beträgt.
- Verwendung des Pulverlacks gemäß Anspruch 1 zur Herstellung matter Beschichtungen.
- Verwendung des Pulverlacks gemäß Anspruch 1 zur Beschichtung hitzeresistenter Substrate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19519006 | 1995-05-24 | ||
| DE19519006A DE19519006A1 (de) | 1995-05-24 | 1995-05-24 | Pulverlack für matte Beschichtungen |
Publications (3)
| Publication Number | Publication Date |
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| EP0744421A2 EP0744421A2 (de) | 1996-11-27 |
| EP0744421A3 EP0744421A3 (de) | 1997-07-16 |
| EP0744421B1 true EP0744421B1 (de) | 2002-04-17 |
Family
ID=7762729
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96107621A Expired - Lifetime EP0744421B1 (de) | 1995-05-24 | 1996-05-13 | Pulverlack für matte Beschichtungen |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5786419A (de) |
| EP (1) | EP0744421B1 (de) |
| JP (1) | JPH08319439A (de) |
| KR (1) | KR100427205B1 (de) |
| AT (1) | ATE216408T1 (de) |
| AU (1) | AU703413B2 (de) |
| CA (1) | CA2177027C (de) |
| DE (2) | DE19519006A1 (de) |
| ES (1) | ES2174996T3 (de) |
| ZA (1) | ZA964126B (de) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19604581A1 (de) * | 1996-02-08 | 1997-08-14 | Bayer Ag | Polyurethan-Pulvermattlacke |
| DE19735043A1 (de) * | 1997-08-13 | 1999-02-18 | Bayer Ag | Verfahren zur Herstellung farbheller Uretdionpolyisocyanate |
| DE19850970A1 (de) * | 1998-11-05 | 2000-05-11 | Degussa | Feste, Triazingruppen aufweisende Polyurethanhärter, Verfahren zur Herstellung derartiger Verbindungen sowie deren Verwendung |
| US6599992B1 (en) * | 1999-06-04 | 2003-07-29 | Reichhold, Inc. | Powder coating composition |
| DE10008927A1 (de) | 2000-02-25 | 2001-08-30 | Degussa | Transparente oder pigmentierte Pulverlacke mit Vernetzern aus Hydroxyalkylamiden und Uretdiongruppen enthaltenden Polyisocyanaten |
| DE10140156A1 (de) * | 2001-08-16 | 2003-03-20 | Basf Coatings Ag | Thermisch und mit aktinischer Strahlung härtbare Beschichtungsstoffe und ihre Verwendung |
| DE60207509T2 (de) * | 2001-10-11 | 2006-06-29 | Rohm And Haas Co. | Pulverbeschichtungszusammensetzung, Verfahren zu deren Härtung und davon abgeleitete Gegenstände |
| JP2004067828A (ja) * | 2002-08-05 | 2004-03-04 | Nippon Perunotsukusu Kk | エポキシ樹脂粉体塗料 |
| DE10346958A1 (de) * | 2003-10-09 | 2005-05-12 | Degussa | Uretdiongruppenhaltige Polyurethanzusammensetzungen, welche bei niedriger Temperatur härtbar sind |
| JP4455012B2 (ja) * | 2003-11-05 | 2010-04-21 | トヨタ自動車株式会社 | 2液硬化型ポリウレタン塗料組成物及び塗装物品 |
| DE102004011004A1 (de) * | 2004-03-06 | 2005-09-22 | Degussa Ag | Verfahren zur Herstellung fester, hochreaktiver Uretdiongruppen haltiger Polyurethanzusammensetzungen |
| DE102004048775A1 (de) * | 2004-10-07 | 2006-04-13 | Degussa Ag | Hoch reaktive uretdiongruppenhaltige Polyurethanzusammensetzungen |
| US20100152404A1 (en) * | 2008-12-10 | 2010-06-17 | E. I. Du Pont De Nemours And Company | Process for the preparation of polyurethdione resins |
| US20100144927A1 (en) * | 2008-12-10 | 2010-06-10 | E.I.Du Pont De Nemours And Company | Thermal curable powder coating composition |
| CA2741583A1 (en) * | 2008-12-10 | 2010-06-17 | E. I. Dupont De Nemours And Company | Process for the preparation of polyuretdione resins |
| DE102009032117B3 (de) | 2009-07-08 | 2011-02-24 | Audi Ag | Verfahren zum Herstellen einer Mattlackierung |
| EP2534214A1 (de) * | 2010-02-12 | 2012-12-19 | E.I. Du Pont De Nemours And Company | Flüssige beschichtungszusammensetzung mit einem latenten katalysator |
| WO2012115691A1 (en) | 2011-02-22 | 2012-08-30 | Basf Coatings Gmbh | Electrocoat coating with low gloss |
| US11427729B2 (en) | 2017-04-11 | 2022-08-30 | Basf Coatings Gmbh | Coating materials generating structured surfaces |
| US10400112B2 (en) | 2017-06-22 | 2019-09-03 | Covestro Llc | Powder coating compositions with a polymeric aromatic product of an aromatic isocyanate manufacturing process |
| US10465090B2 (en) | 2017-06-22 | 2019-11-05 | Covestro Llc | Powder coating compositions with a polymeric aromatic product of an aromatic isocyanate manufacturing process |
| KR102756398B1 (ko) * | 2019-10-17 | 2025-01-16 | 아크조노벨코팅스인터내셔널비.브이. | 저광택 폴리우레탄 코팅 조성물 |
| US12157810B1 (en) | 2020-10-20 | 2024-12-03 | Polyballistics LLC | Filled uncured rubber compound for less lethal ammunition and drug-eluting electrospun fiber mat |
| CN115926192B (zh) * | 2023-01-06 | 2023-07-07 | 江南大学 | 一种生物基粉末涂料及其制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2147653A1 (de) * | 1971-09-24 | 1973-04-05 | Jaroslav Strumhaus | Lackpulver fuer matteffekt-lackierung |
| BE789216A (fr) * | 1971-10-01 | 1973-03-26 | Shell Int Research | Omposities werkwijze ter bereiding van poedervormige deklaagc |
| DE3030588A1 (de) * | 1980-08-13 | 1982-03-18 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von blockierungsmittelfreien polyurethan-pulverlacken mit hoher lagerstabilitaet, die oberhalb 120(grad) c haertbar sind, sowie die danach hergestellten polyurethan-pulverlacke |
| DE3030539A1 (de) * | 1980-08-13 | 1982-04-01 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von abspaltfreien polyurethan-pulverlacken sowie die danach hergestellten lacke |
| DE3232463A1 (de) * | 1982-09-01 | 1984-03-01 | Bayer Ag, 5090 Leverkusen | Verwendung blockierter polyisocyanate als haerter fuer hydroxylgruppen-haltige bindemittel |
| DE3328133C2 (de) * | 1983-08-04 | 1986-07-31 | Hüls AG, 4370 Marl | Pulverlacke auf der Basis von uretdiongruppenhaltigen Isophorondiisocyanatadditionsverbindungen und ein Verfahren zur Herstellung matter Überzüge |
| DE3328129A1 (de) * | 1983-08-04 | 1985-02-21 | Chemische Werke Hüls AG, 4370 Marl | Pur-pulverlacke fuer matte ueberzuege |
| DE3624775A1 (de) * | 1986-07-22 | 1988-01-28 | Bayer Ag | Pulverlack und seine verwendung zur beschichtung von hitzeresistenten substraten |
| US4788255A (en) * | 1986-09-29 | 1988-11-29 | Ppg Industries, Inc. | Powder coating compositions |
| DE3711374A1 (de) * | 1987-04-04 | 1988-10-20 | Huels Chemische Werke Ag | Polyurethan-pulverlacke, die nach aushaertung eine matte oberflaeche ergeben |
| US5055524A (en) * | 1987-07-16 | 1991-10-08 | Ppg Industries, Inc. | Polyol-modified polyanhydride curing agent for polyepoxide powder coatings |
| DE3739479A1 (de) * | 1987-11-21 | 1989-06-01 | Huels Chemische Werke Ag | Pur-pulverlacke fuer matte ueberzuege |
| JPH05209138A (ja) * | 1992-01-29 | 1993-08-20 | Nippon Ester Co Ltd | 粉体塗料用樹脂組成物 |
| DE4327573A1 (de) * | 1993-08-17 | 1995-02-23 | Bayer Ag | Uretdion-Pulverlackvernetzer mit niedriger Schmelzviskosität |
| DE4337855A1 (de) * | 1993-11-05 | 1995-05-11 | Bayer Ag | Pulverlack und seine Verwendung |
| DE4427225A1 (de) * | 1994-08-01 | 1996-02-08 | Bayer Ag | Härter für Pulverlackbindemittel |
-
1995
- 1995-05-24 DE DE19519006A patent/DE19519006A1/de not_active Withdrawn
-
1996
- 1996-05-13 DE DE59609081T patent/DE59609081D1/de not_active Expired - Lifetime
- 1996-05-13 AT AT96107621T patent/ATE216408T1/de not_active IP Right Cessation
- 1996-05-13 ES ES96107621T patent/ES2174996T3/es not_active Expired - Lifetime
- 1996-05-13 EP EP96107621A patent/EP0744421B1/de not_active Expired - Lifetime
- 1996-05-16 US US08/649,044 patent/US5786419A/en not_active Expired - Lifetime
- 1996-05-21 AU AU52423/96A patent/AU703413B2/en not_active Ceased
- 1996-05-21 CA CA002177027A patent/CA2177027C/en not_active Expired - Fee Related
- 1996-05-21 JP JP8148486A patent/JPH08319439A/ja active Pending
- 1996-05-23 KR KR1019960017669A patent/KR100427205B1/ko not_active Expired - Fee Related
- 1996-05-23 ZA ZA964126A patent/ZA964126B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA2177027A1 (en) | 1996-11-25 |
| AU5242396A (en) | 1996-12-05 |
| DE19519006A1 (de) | 1996-11-28 |
| ATE216408T1 (de) | 2002-05-15 |
| EP0744421A3 (de) | 1997-07-16 |
| MX9601708A (es) | 1997-07-31 |
| DE59609081D1 (de) | 2002-05-23 |
| JPH08319439A (ja) | 1996-12-03 |
| ZA964126B (en) | 1996-12-03 |
| AU703413B2 (en) | 1999-03-25 |
| CA2177027C (en) | 2006-12-05 |
| KR100427205B1 (ko) | 2004-12-17 |
| US5786419A (en) | 1998-07-28 |
| ES2174996T3 (es) | 2002-11-16 |
| EP0744421A2 (de) | 1996-11-27 |
| KR960041296A (ko) | 1996-12-19 |
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